Grease Gun Pressure Regulating Assembly for Stable Dispensing
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Solution Overview
Problem
Grease guns face challenges with fluctuating internal pressure as they approach full grease injection, leading to difficulties in regulating grease dispensing, which can result in either excessive or insufficient lubrication, compromising equipment maintenance and posing safety risks.
Innovation Solution
The grease discharging apparatus incorporates a pressure regulating assembly with a first elastic element, a valve core, and a third steel ball, which blocks and unblocks the grease discharge chamber and overflow hole based on pressure differences, ensuring stable pressure output. Additionally, an adjusting knob and structure allow for fine pressure adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressure regulation structure is incorporated into the grease gun, then pressure control is improved, but the device complexity increases
Solution Approach 1:
The pressure regulation assembly is designed to automatically regulate pressure without external intervention. The valve core and elastic element work together to automatically open or close the overflow hole based on pressure conditions, eliminating the need for manual pressure adjustment during operation.
Solution Approach 2:
The valve core acts as an intermediary component between the grease discharge chamber and the overflow hole. It mediates the pressure control function by opening or closing the flow path based on pressure differential, allowing indirect pressure regulation without complex control mechanisms.
2Ease of manufacture
If the pressure regulation structure is simplified for ease of manufacture, then manufacturing precision may deteriorate
Solution Approach 1:
The elastic element provides a variable spring constant that allows the pressure regulation system to adapt to different operating conditions. By designing the elastic element with specific force-displacement characteristics, the system achieves accurate pressure regulation while maintaining simple structure and ease of manufacture.
Solution Approach 2:
The pressure regulation system is designed to be dynamically adjustable through the rotating member, which changes the pre-compression force of the elastic element. This dynamic adjustment capability allows the system to maintain manufacturing precision across different operating conditions without requiring complex fixed structures.
3Productivity
If the grease gun operates continuously without pressure control, then productivity is maintained, but harmful factors increase
Solution Approach 1:
The pressure regulation assembly incorporates a feedback mechanism where the valve core responds to pressure differential across it. When pressure in the grease discharge chamber exceeds the sum of elastic element force and ambient pressure, the valve core opens the overflow hole, allowing grease to flow back and reducing pressure. This continuous feedback loop enables safe continuous operation.
Solution Approach 2:
The overflow hole, which could be seen as a loss of grease, is actually designed to prevent harmful excessive pressure buildup. By converting potential pressure harm into controlled grease回流, the system protects against tool failure and safety risks while enabling continuous operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides stable and reliable pressure control, preventing excessive or insufficient lubrication, thereby ensuring safer and more efficient grease dispensing, reducing tool failure, and improving maintenance ease.
Implementation Method 1
a first elastic element, a valve core located at one end of the first elastic element
Implementation Method 2
When a pressure in the grease discharge chamber is greater than a pressure output by the pressure regulating assembly, the pressure regulating assembly generates a displacement
Data Source
AI summary
A grease discharging apparatus includes a pump body, a grease storage tube, an eccentric reciprocating assembly and a pressure regulating assembly. The grease storage tube is connected to the pump body. The eccentric reciprocating assembly is installed on a top end of the pump body. The eccentric reciprocating assembly includes a plunger. The plunger is configured to reciprocate within the pump body to cause grease in the grease storage tube to enter an external grease injection device through a grease discharge circuit. The grease discharge circuit includes a grease discharge chamber and an overflow hole communicating with each other. The overflow hole communicates with the grease storage tube. The pressure regulating assembly is installed in the grease discharge circuit.